Взять, took
burn, burnt
идти, go
kept, kept
делать, did
learn, learnt
покупать, buy
know, knew, known
A36. 2. Had
A37. 2. will be
A38. 2. hear
A39. 3. some
A40. 3. meeting
A41. 1. to memorize
A42. 4. had read
A43. 3. have... cried
A44. 1. had left
A45. 2. was leaving
A46. 2. herself
A47. 1. wouldn't have got
A48. 1. tell
A49. 3. myself
A50. 3. neither have I